Specializing in Clay, Excavation, and Site Preparation
Welcome to Thomas Excavation, your trusted local partner for excavation, land development, and clay solutions in Aniwa, Wisconsin. As the region’s go-to source for clay pit access, hauling, and installation, we proudly support commercial, industrial, and agricultural clients throughout Central and Northern Wisconsin.
From retention ponds and driveway installations to lot clearing and demolition, we bring the equipment, experience, and work ethic to handle your project from start to finish — safely and efficiently.
Our Core Services

Clay Hauling & Installation
We own and operate an active clay pit in Aniwa, providing high-quality material for a wide range of applications.
Whether you’re building a new retention pond, repairing an existing one, or lining a lagoon, our team handles:
- Clay supply direct from pit
- Hauling to site – any volume
- On-site clay spreading and compaction
- Expert installation to spec
Serving agriculture operations, industrial developments, and commercial drainage systems, we understand what it takes to get the job done right — and watertight.

Excavation
Precision excavation for foundations, basements, grading, and site prep. We operate modern equipment and deliver clean, level, and build-ready results.

Retention Pond Construction
Beyond just clay work, we excavate and shape engineered retention ponds for water management, compliance, and environmental control. Ideal for farms, factories, and stormwater systems.

Demolition
Efficient, controlled demolition for old structures, concrete pads, and site clearing. We handle debris removal and site leveling with safety and speed.

Lot Clearing
Remove trees, brush, stumps, and overgrowth. Whether prepping for development or creating usable acreage, we’ll open your site with care and precision.

Driveway Installation
Durable driveways built to last — from rural gravel access roads to long private lanes. We handle everything from base prep to final grade.
Based in Aniwa. Serving All of Northeast and Central Wisconsin.
Our team serves clients across Wausau, Antigo, Merril, Shawano, Marathon, Langlade, and surrounding counties, with a strong reputation for quality work and fair pricing. We work with property owners, municipalities, developers, and farmers who need experienced, dependable excavation and site services.
Why Choose Thomas Excavation?
- Local bentonite clay source – no middleman
- Fully insured and safety-minded crew
- Transparent pricing and timely scheduling
- Deep experience in
ag, commercial, and industrial sitework
Get a Quote on Clay or Excavation Work Today
When you need clay, dirt moved, or land cleared, call the team that delivers both product and performance.
Contact Thomas Excavation to schedule your free estimate.